Command to find TOP 5 Memory consuming process

HI All,
Can anyone send me a command to find TOP 5 Memory consuming process.
It would be lelpful if I get output something like below
processname - pid - memory(in MB) - command
I tried find few commands from the internet but the result only give the real memory usage or pagging.
I tried using topas and vmon but the result seems to be in accurate.